A. The arrangement of streets shall conform as nearly as possible to the City Comprehensive Plan. Except for cul-de-sacs, roads and streets normally shall connect with roads and streets already dedicated in adjoining or adjacent subdivisions, or provide for future connections to adjoining unsubdivided tracts, or shall be a reasonable projection of roads In the nearest subdivided tracts. The arrangement of streets shall be considered in their relation to the reasonable circulation of traffic, to topographic conditions, to runoff storm water, to public convenience and safety, and in their appropriate relation to the proposed uses of the area to be served.
B. Minor streets and marginal streets should be so planned as to discourage their use by nonlocal traffic. Dead-end streets and roads shall be prohibited, but cul-de-sacs will be permitted where topography or other conditions justify their use. Cul-de-sacs shall normally not be longer than five hundred feet (500'), including a terminal turnaround which shall be provided at the closed end, with an outside curb radius of at least fifty feet (50') and a right-of-way radius of not less than sixty feet (60').
C. Where the plat to be submitted includes only part of the tract owned or intended for development by the subdivider, a tentative plan of a proposed future street system for the unsubdivided portion shall be prepared and submitted by the subdivider.
D. When a tract is subdivided into larger than normal building lots or parcels, such lots or parcels shall be so arranged as to permit the logical location and openings of future roads and appropriate resubdivision, with provision for adequate utility connections for such resubdivision.
E. Under normal conditions, streets shall be designed so as to intersect as nearly as possible at right angles, except where topography or other conditions justify variations. Under normal conditions, the minimum angle of intersection of streets shall be eighty degrees (80o). Street intersection jogs with an offset of less than one hundred twenty five feet (125') shall be avoided.
F. Wherever the proposed subdivision contains or is adjacent to the right of way of a State or Federal highway, provision shall be made for a marginal access street or road approximately parallel and adjacent to the boundary of such right of way, or for a road or street at a distance suitable for the appropriate use of land between such road or street and right of way. Such distance shall be determined with due consideration for the minimum distance required for approach connections to future grade separations, or for lot depths.
G. Alleys shall be provided in commercial and industrial districts, except that this requirement may be waived where other definite and assured provision is made for service access, such as on-site loading, unloading and parking consistent with and adequate for the uses proposed. Alleys, where provided, shall not be less than twenty feet (20') wide. Dead-end alleys and any alleys in residential areas shall be avoided wherever possible, but if unavoidable, such dead-end alleys may be approved if adequate turnaround facilities are provided at the closed end.
H. Dedication of half streets or roads will not be approved, except where it is essential to the reasonable development of the subdivision and in conformity with the other requirements of these regulations, where it is found that it will be practical to require the dedication of the other half when the adjoining property is subdivided, or where it becomes necessary to acquire the remaining half by condemnation so that it may be improved in the public interest.
I. For all public ways hereafter dedicated and accepted, the minimum right-of-way widths for streets, and thoroughfares shall be as shown in the Comprehensive Plan for Montevideo and where not shown therein, the minimum right-of-way width for streets. thoroughfares, alleys or pedestrianways included in any subdivision shall not be less than the minimum dimensions for each classification as follows:
Major thoroughfare | 100 feet |
Secondary thoroughfare | 80 feet |
Collector street | 60 feet |
Minor street | 60 feet |
Marginal access street | 50 feet |
Alley | 20 feet |
Pedestrianway | 10 feet |
Where existing or anticipated traffic on major and secondary thoroughfares warrants greater widths of right of way, these shall be required.
J. The grades in all streets, thoroughfares, collector streets, minor streets and alleys in any subdivision shall be prescribed by the City Engineer and wherever practical shall not exceed the following:
Major thoroughfare | 5 percent |
Secondary thoroughfare | 5 percent |
Collector street | 5 percent |
Minor street | 8 percent |
Alley | 8 percent |
In addition, there shall be a minimum grade on all streets and thoroughfares of not less than one-half of one percent (0.5%).
K. The horizontal and vertical alignment standards on all streets shall be as follows:
1. Horizontal: Radii of center line:
Desirable | Minimum Acceptable
| |
Major thoroughfare | 800 feet | 500 feet |
Secondary thoroughfare | 800 feet | 500 feet |
Collector street | 500 feet | 300 feet |
There shall be a tangent between all reversed curves of a minimum length as follows:
Minimum Acceptable
| |
Major thoroughfare | 100 feet |
Secondary thoroughfare | 100 feet |
Collector street | 50 feet |
2. Vertical: All changes in street grades shall be connected by vertical parabolic curves of such length as follows:
Major or secondary thoroughfares | 300 feet minimum |
Collector or minor street | 100 feet minimum |
L. All proposed streets shall be offered for dedication as public streets, except that private streets may be permitted, following approval of the variance application, within the boundaries of property under one ownership. (Ord. 470, 2-18-1975)